For technical notes on specific BEXT units: check our Support page.
Glossary
of audio, video and RF Terms
FM
Protection Ratios - ITU Planning Standards for Terrestrial FM Sound Broadcasting
(BS.412.9 - Word)
Another
Look at Sidelobe-free FM Antennas - Courtesy of Richard J. Fry, CPBE (.pdf)
Antenna
Design - For FM Broadcast (.pdf, 373k)
Diplex
Filter - Information on Tuning (.pdf, 94k)
Extending
Tube Life - Courtesy of Eimac
Replacing
Passive Components - Iimprove audio quality by Peter J. Stamler
FM Antenna
Interbay Spacing - Modifying spacing to solve downward radiation and other problems by
Joseph Semak, Tele-Images, San Diego, CA
Conversion
vs. Demodulation - In FM STL and translator Systems
IOT - An
Old Dream Come True
FM
Reception Tips - Courtesy of Winegard Company
RF Filtering
- Products for the Broadcast Industry Courtesy EMR Corporation
Installation
of RF Power Transistors and Modules - Courtesy of RF Parts Company
- Engineering Charts and Tables
Approximate
Distance to 0.5MV/M (54 DBU) Contour - Courtesy of ERI (Your browser should support
'tables' for best results.)
Andrew Heliax Cable Data - Useful Andrew Heliax cable Data
(your browser should support tables for best results), if you want to download this table
in MS Word format follow this Link.
Average
Power Rating - For transmission cable (84k Gif file) Print out for best results.
Stereo
Separation - Measuring it with an Oscilloscope
VSWR -
Voltage Standing Wave Ratio Relationships (Your browser should support 'tables' for best
results.)
Bessel
Nulls - For Frequency Modulation Systems (Your browser should support 'tables' for
best results.)
Television
Channels - Video and Audio Frequencies for U.S. standard
LEX-25
- 25W FM Exciter Technical Manual ~35k (Word for Windows 6.0 format).
T-Series
- FM Tube Amplifier Technical Manual, 800 - 2200 Watts ~260k (Word for Windows 6.0
format).
RF Specialties - version 2.46 (126 k) Useful Engineering
Calculations for the Broadcast Engineer.
Pilrvr3.zip
- (61 k) RS 232 Remote Frequency Programmability Set-up for PTX 30 Exciter
"A
Short History of Transmission Audio Processing in the United States" - By Robert
Orban
Classic
Ribbon Microphones - By Mike Dorrough
History
of JBL Loudspeakers
History
of Ampex Recorders - By Jack Mullin (.pdf format)
Long-distance
FM Reception - an explaination
United
States FM Radio Stations - Summer 1958
LEX 25
- Article on "Bext Buy" Exciter
LC-STL
- Article on the STL Series
Customer
Review - On the L-series FM Transmitters
Bext
transmitter delivers 155% rated power - .pdf format only, 70 k
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